COMB: A Portable Benchmark Suite for Assessing MPI Overlap

Authors:
William Lawry;Christopher Wilson;Arthur B. MacCabe;Ron Brightwell
Affiliations:
-;-;-;-
Venue:
CLUSTER '02 Proceedings of the IEEE International Conference on Cluster Computing
Year:
2002

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Abstract

This paper describes a portable benchmark suite that assesses the ability of cluster networking hardware and software to overlap MPI communication and computation. TheCommunication Offload MPI-based Benchmark, or COMB, uses two methods to characterize the ability of messages to make progress concurrently with computational processing on the host processor(s). COMB measures the relationship between MPI communication bandwidth and host CPU availability.